Vancouver (WA)
September
Weather in Vancouver, Washington for September 2026
Your guide to Vancouver weather in September - trends and predictions
In general, the average temperature in Vancouver at the beginning of September is 27.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21 °C by the end of September.
The climate of Vancouver in September is notably wet, with an average of 13 rainy days, and a total of 60.3 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
13
Rainy days
0
Snow days
24°/13°
Temperatures
10 km/h
Avg max wind
66 %
Avg humidity
Vancouver Weather September
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Temperatures trend during September in Vancouver
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September weather in Vancouver day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Fog | 27° /14° | 0.1 mm | 6 | |
| Sept. 2 |  Cloudy | 28° /13° | 0.1 mm | 6 | |
| Sept. 3 |  Patchy rain possible | 27° /15° | 0.7 mm | 6 | |
| Sept. 4 |  Overcast | 27° /13° | 0.5 mm | 6 | |
| Sept. 5 |  Sunny | 32° /15° | 0 mm | 8 | |
| Sept. 6 |  Partly cloudy | 28° /15° | 0 mm | 7 | |
| Sept. 7 | Cloudy | 25° /15° | 0 mm | 6 | |
| Sept. 8 | Overcast | 26° /13° | 3.2 mm | 6 | |
| Sept. 9 | Mist | 26° /13° | 4.4 mm | 6 | |
| Sept. 10 | Sunny | 24° /13° | 0 mm | 6 | |
| Sept. 11 | Overcast | 20° /12° | 3.5 mm | 4 | |
| Sept. 12 | Cloudy | 21° /11° | 0.2 mm | 5 | |
| Sept. 13 | Mist | 24° /10° | 0 mm | 6 | |
| Sept. 14 | Sunny | 25° /11° | 1.4 mm | 6 | |
| Sept. 15 | Sunny | 27° /10° | 0 mm | 6 | |
| Sept. 16 | Sunny | 29° /13° | 0 mm | 7 | |
| Sept. 17 | Overcast | 23° /13° | 6.8 mm | 6 | |
| Sept. 18 | Overcast | 22° /12° | 0 mm | 5 | |
| Sept. 19 | Overcast | 23° /12° | 0 mm | 6 | |
| Sept. 20 | Light rain shower | 22° /11° | 0.4 mm | 5 | |
| Sept. 21 | Partly cloudy | 22° /10° | 5.5 mm | 6 | |
| Sept. 22 | Sunny | 23° /10° | 0 mm | 6 | |
| Sept. 23 | Light rain shower | 26° /13° | 1.1 mm | 6 | |
| Sept. 24 | Sunny | 27° /14° | 1.9 mm | 7 | |
| Sept. 25 | Light rain shower | 20° /12° | 7.1 mm | 4 | |
| Sept. 26 | Light rain shower | 20° /10° | 3.7 mm | 5 | |
| Sept. 27 | Overcast | 22° /13° | 4.8 mm | 5 | |
| Sept. 28 | Overcast | 20° /11° | 0.5 mm | 5 | |
| Sept. 29 | Overcast | 18° /10° | 4.5 mm | 4 | |
| Sept. 30 | Sunny | 20° /9° | 9.7 mm | 5 | |
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Important Notice
Our weather forecast for Vancouver in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Vancouver forecast closer to your planned date for the most up-to-date weather information.
Change Month
Vancouver in September - FAQ
What are the expected maximum and minimum temperatures in Vancouver during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Vancouver during September?
Moderate rainfall is anticipated in Vancouver during September, with a total of 60.3 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Vancouver during September?
The average wind speed in Vancouver during September is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Vancouver
Explore the daily rainfall trends and prepare for Vancouvers September weather 💧
Typically, Vancouver has 13 rainy days in September with a total of 60.3 mm of rainfall.
UV exposure in Vancouver during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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